临界浓度

红壤中La对油菜的剂量效应和临界浓度

Does Response of Rape to La and Critical Concentration of La in Red Earth

La对油菜的临界浓度为30mg/kg。

The critical concentration of lanthanum to rape was suggested to be 30 mg / kg .

土壤镍的临界浓度初探红壤中La对油菜的剂量效应和临界浓度

Inquiry the Ni Critical Concentration Does Response of Rape to La and Critical Concentration of La in Red Earth

偏光显微镜和DSC测定都表明临界浓度为43wt%。

The critical concentration of mesophase formation was 43 wt % determined both by DSC and polarizing light microscopy .

在EC/PS共混体系中，EC的临界浓度与共混组成无关，都是30%。

In EC / PS blend system , the critical concentration of EC was 30 % , independing of composition .

对于低浓度PAM水溶液，表现为牛顿性流体，超过一个临界浓度（C）以上，PAM水溶液表现为假塑性流体。

Low concentration PAM aqueous solutions behave as Newtonian fluids , but PAM aqueous solutions with concentrations exceeding critical concentration ( C ) behave as pseudoplastic fluids .

目的应用基准剂量（BMD）方法来确定铅引起神经行为不良效应的血铅临界浓度。

Objective Benchmark dose ( BMD ) was applied to determine the critical concentration of blood lead which led to adverse effects on neurobehavior .

研究发现：纳米Y2O3：Eu~（3+）的发光强度随Eu~（3+）离子浓度的增加而增大，其最佳掺入量为10%左右，该临界浓度比微米晶的6%明显提高；

It demonstrates that the luminescence intensity of Y_2O_3 : Eu ~ ( 3 + ) phosphors have increased with Eu concentration , the optimal Eu concentration is 10 % .

同时研究了SA水溶液在临界浓度5%（重量比）时，用浇铸法制得的SA薄膜，呈现出典型的多角形结构。

At the same time , the refined structure of lyotropic liquid crystal of SA was studied . The typical polygon showed up at the critical concentration ( 5 % by wt. )

当NaCl水溶液的浓度低于某一临界浓度时，多孔管可以防止NaCl在多孔层内析出，具有高效的传热性能。

The results show that porous surface tubes can prevent deposit of NaCl within porous surface and have excellent heat transfer properties when the concentration of NaCl solution is lower than critical concentration .

不同立竹结构对临界浓度标准有影响，每亩立竹250株以上的竹林，N、P浓度临界值分别为2.6%和0.13%，理想值为2.8%和0.16%。

Critical value standards were affected by the structure of standing bamboos . As standing bamboos had more than 250 culms per mu ( 1 / 15 ha ), N , P critical values were respectively 2.6 % and 0.13 % ; optimum values were 2.8 % and 0.16 % .

本文介绍生物检定中Cooper方程式的意义，其中提出的临界浓度和临界时间的概念能很好地说明抑菌圈形成的原因。

Significance of Cooper Equation applied to antibiotic bioassay has been stressed . The concepts of critical concentration and critical time are shown to be very useful in explaining the formation of inhibition zone .

AS-PEG及AS-PVP体系的聚合物相对分子质量阈值及表面活性剂临界浓度

Threshold Molecular Weight of Polymer and Critical Concentration of Surfactant in AS-PEG or AS-PVP Systems

利用原子力显微镜（AFM）研究了海藻酸钠水溶液浇铸法制得的薄膜，在临界浓度5%（重量比）呈现出典型的多角形结构，这是溶致液晶的结构特征之一。

Solution casting films of alginate sodium was studied by AFM in the paper . At the critical concentration ( 5 % by wt. ) , the typical polygon structures , which is one of properties of lyotropic liquid crystal , appeared in this experiment .

研究发现：在一定的电压和喷丝头与接收屏的距离（C-D）下，7wt%是具有良好可纺性的临界浓度。

7wt % was a critical concentration of SF solution for better spinnability at a special vol - ( tage ) and distance from the tip of capillary to the collector screen ( C-SD ) .

尿铬与肾损害程度显著相关，尿LZM、尿蛋白和GFR出现异常的尿铬临界浓度分别为5.90,7.57和9.36μg/mg肌酐。

The critical concentrations of chromium in urine for the abnormal changes of urinary lysozyme , protein and GFR were 5.90 , 7.57 and 9.36 μ g / mg creatinine , respectively .

100￣120mM为玉米盐胁迫筛选的下限临界浓度，200￣220mM为玉米盐胁迫筛选的上限临界浓度；

100 ~ 120mM was the lower limit critical concentration of NaCl in maize salt-tolerant screening , and 200 ~ 220mM was the upper limit critical concentration .

随着浓度的增加，AMC溶液的流变行为逐渐由牛顿流体向剪切变稀行为转变，从稀溶液到浓溶液转变的临界浓度为0.7wt%。

Steady-shear flow study showed a Newtonian behavior of the solutions in the dilute regime while a shear-thinning behavior as the concentration increases . The critical concentration for transition from dilute to concentrated solution was determined to be 0.7 wt % .

肾铬与肾损害相关密切，尿LZM和尿蛋白出现异常的肾皮质铬临界浓度分别为36.7ppm和41.8ppm。

The critical concentrations of chromium in the renal cortex were 36.7 and 41.8 ppm respectively due to the significant increase of the urinary excretion of lysozyme and protein .

该因子有显著的抗凝血活性，延长白陶土部分激血活酶时间的临界浓度为0.2mg/ml，无纤溶活性、磷脂酶A2活性和出血活性。

It had remarkable anticoagulant activity with the critical concentration of 0.2 mg / ml to prolong kaolin partial thrombo-plastin time . No fibrinolytic activity , phospholipase A2 activity and haemorrhagic activity were found .

盆栽实验表明，土壤中莠去津对大豆、甜玉米、小麦、水稻和甜瓜的安全临界浓度分别为0.7911,1.5360,0.2932,0.0493和0.0879mg·kg-1，水稻和甜瓜的死亡浓度为0.5mg·kg-1。

The critical safety concentrations of atrazine in soil to five crops were studied in greenhouse . The results showed that the critical safety concentrations for soybean , sweet corn , wheat , rice and muskmelon were 0.7911,1.5360,09.2932, 0.0493 and 0.0879mg · kg-1 , respectively .

以美国临床检验标准委员会（NCCLS）的临界浓度做为判断标准，采用微量稀释法判定了猪链球菌对强力霉素、盐酸四环素、盐酸金霉素3种四环素类抗生素的耐药性。

By the critical concentration as a standard of the United States Committee for Clinical Laboratory Standards ( NCCLS ), we used microdilution method to determine the resistance of Streptococcus suis against three kinds of tetracycline , which were doxycycline , tetracycline hydrochloride and chlortetracycline hydrochloride .

黄棕壤性水稻土镉临界浓度的研究

Study on the critical cadmium concetration IN-YELLOW Brown Earth Paddy Soil

耐盐临界浓度为2%。

The critical concentration of salt endurance was 2 % .

氯离子在混凝土中的渗透性能与钢筋腐蚀临界浓度的试验研究

The Study of Chloride Ions Penetration Capacity and Critical Content in Concrete

用有效态铅为指标有可能使不同土壤铅临界浓度比较接近一致。

Available Pb may unify the critical concentration of Pb in various soils .

PSS/PDDA自组装膜形成过程中的临界浓度效应

Critical Concentration Effect During the Preparation of Self-assembled PSS / PDDA Multilayer Films

而当溶质浓度超过临界浓度值时，溶液电导率的增加缓慢。

The conductivity increases slowly when the concentration is larger than the moderate value .

20钢氢致开裂临界浓度与应力的关系

Effects of critical hydrogen concentration and stress on Hydrogen-Induced Cracking in plain steel 20

甘蔗耐氯临界浓度研究

Tolerant critical concentration of chlorine to sugarcane